Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Re8 win in 3 half-moves
3 Rf3 win in 3 half-moves
4 Kb3 draw
5 Kb4 draw
6 Kb5 draw
7 Kc3 draw
8 Kc6 draw
9 Kcc5 draw
10 Kcd4 draw
11 Kd3 draw
12 Kd6 draw
13 Kdc5 draw
14 Kdd4 draw
15 Ra8 draw
16 Rc8 draw
17 Rd8 draw
18 Rf1 draw
19 Rf2 draw
20 Rf7 draw
21 Ke4 loss in 2 half-moves
22 Ke5 loss in 2 half-moves
23 Ke6 loss in 2 half-moves
24 Rf4 loss in 2 half-moves
25 Rf5 loss in 2 half-moves
26 Rf6 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh8 loss in 2 half-moves